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| The diurnal evaporative emissions measurement enclosure shall be equipped with an internal blower or blowers coupled with an air temperature management system (typically air to water heat exchangers and associated programmable temperature controls) to provide for air mixing and temperature control. The blower(s) shall provide a nominal total flow rate of 0.8 ¡À 0.2 ft3/min per ft3 of the nominal enclosure volume, Vn. The inlets and outlets of the air circulation blower(s) shall be configured to provide a well-dispersed air circulation pattern that produces effective internal mixing and avoids significant temperature or hydrocarbon and alcohol stratification. The discharge and intake air diffusers in the enclosure shall be configured and adjusted to eliminate localized high air velocities which could produce non-representative heat transfer rates between the engine fuel tank(s) and the air in the enclosure. The air circulation blower(s), plus any additional blowers if required, shall maintain a homogeneous mixture of air within the enclosure. |
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reko34
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RXMCDM: ½ð±Ò+1 2014-06-09 16:37:20
whm0827: ½ð±Ò+25, ·ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2014-06-10 15:45:48
RXMCDM: ½ð±Ò+1 2014-06-09 16:37:20
whm0827: ½ð±Ò+25, ·ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸ 2014-06-10 15:45:48
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2Â¥2014-06-09 16:19:01
Paulwolf
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ר¼Ò¾Ñé: +178 - ·ÒëEPI: 23
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3Â¥2014-06-09 16:22:01
whm0827
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4Â¥2014-06-10 15:46:45













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